Warmer.



- J. T. ROBERTS.

WABME R. APPLICATION FILED D30. 1, 1913.-

1,105,-3o7. Pai ented Ju ly28, 191:1

2 sums-sum 1.

War-21624 J. T. ROBERTS.

WARNER.

APPLICATION FILED DBO. 1, 1913.

2 Wm 7E i ye m J! s Ma n m P JOHN T; nonnnrs, or wasnineron, DISTRICT or COLUMBIA.

WAR'MER.

Specification of Letters Patent.

Application filed December 1, 1913. Serial No. 803,964.

of parts hereinafter set forth and pointed out in the claims.

The accompanying drawing illustrates a simple and approved reduction of the improvement to practice, and in the said drawing: Figure 1 is a perspective view of a foot warmer constructed in accordance with the present invention, Fig.2 is a central vertical longitudinal sectional view of the same, Fig. 3 is a transverse section on the line 3-3 of Fig. 2, Figs. 4: and 5 are similar sectional views but illustrating different forms of construction, Figs. 6,7, 8 and 9 illustrate warmers embodying the principle of my invention and adapted to be applied to various portionsof the human body for the alleviation of pain through theproc'ess of heat.

The improvement may beconstructed in any desired shape, and in any proportion best suited for the purpose for which the device is intended; 1

In Figs. 1 to 5 of the accompanying drawings, I have illustrated simple and approved types of the invention which areinthe nature of foot warmers,eachofwhich including an outer casing 1 which is preferably formed from a single sheet of comparatively thin metal, such as sheet iron'andwhich is provided with a bail or handle; the handle, shown in Fig. 1, being substantially shaped, and indicated by the numeral 2, while the handle, '2, "in Fig. 2 of the drawing is ring-shaped, having split ends which may be inserted through the metal casing 1 or which may be secured to the casing through the medium-of a bent strip passing through a suitable opening in the casing and which has its ends bent in opposite directions from the sald openmg. In all of these figures I have illustrated a rounded core 3, in the nature of a heat-carrying element or radiator, and preferably formed of a single cube of porous metal, such as cast iron. Tamped withinthe casing 1 and entirely inclosing the radiator core 3 is a filler of heat-distributing material 4:. This material may comprise powdered soapstone, brick dust, sand and aproper proportion of cement to which is added a sufiicient quantity of water to render the same plastic, but which after being tamped around the core 3 is allowed to set and harden. The material in its hardened state is practically nonbreakable, but at the same time diffuses or distributesheat from the radiator 3 at such a degree that the device will retain its warmth for-a great length of time.

After the material comprising the heat distributor 4 becomes hardened around the core 3, these two elements become joined and inseparable, and the said material being join orconnect itself with the said casing, so the casing,the heat distributer and the core, while each formed of different materiahare so associated as to provide a single member made up of inseparable elements. All of Patented July28,1914.

vtamped into the casing 1 will, when set,.

the saidfelements are 'co-extensive one with the other. This particular and peculiar construction and arrangement is essential in a warmer which will diffuse the heat evenly, at a higher temperature, and for a'greater period of timethan is possible with warmers, of the ordinary construction, wherein the core or radiator is removed for heating and replacedwithin a casing for diffusing the heat! With my construction the casing first receives the units-of heat which pass therefrom through the distributing sub stance 4: to the radiator or core 3.. The core,

being'of porous metal, quickly absorbs the heat, andwould also quickly diffuse the. same (after the warmer is heated) were the heat unitslnot halted temporarily by the plastic Thus the casing 1 and the distributer 1 restricts the outflow of heat, so that the units of heat are diffused slowly but at almost a uniform temperature for the length of time time being, as stated, greatly in excessof any similar warmer which has come under my observationr' The device is heated by placing the same in an ordinary hot oven, the heating cham ber of a sterilizing apparatus, or over a burner, or by immersing in a vessel of boiling water and may then be inclosed or wrapped within a cloth, as indicated by the 'distributer 4 and the thin metal casing-1.

the warmer remains heated, such length of dotted lines in Fig. 3, and designated by the numeral 5 in the said figure. The de-- vice may be used under bed clothing ormay be carried in the pocket of the owner, and,

of course, the device may be applied to the different parts of a person in lieu of the,

usual hot water bag. The devices illustrated in the remaining figures of the drawing are provided for relieving or alleviating pain from the human body and which are adapted to be employed in lieu of the ordinary hot" water bottle or similar easily constructed devices.

In Fig. 6 there is shown two mem-I' vided with a handle 2, and the interior con-= struction of the said-members issubstantially :similar'to that heretofore described, a radi-;l ating core 3 being arranged longitudinallyf of each of the members and the said core is entirely surrounded with aheat distributing filler 4;. Each member A may be used separately when desired and may be placed; against the side, thighor shoulder of a pa-;

tient to draw pain from'the diseased parts.

The member A can be turned upside down to adapt itself to the shoulder or spinal col umn of the patient, while it can also be turned upon one of itssides and applied to the shoulder and back of the patient.

In Fig. 7 two substantially wedge-shapedi members BB are illustrated, each of which comprising an outer casing having a longi "tudinally arranged radiating core 3 and a 'fillerof beat-distributing material 4, which surrounds the core and which'fills'the casing. Each of the members B is provided with a stationary handle 2 These members may be used separately and applied toapatients '1 shoulder or back,or may form a cradle, as; illustrated for the reception of the legs OIi arms of thepatient to draw the pain from these parts.

In Fig. 8 I have illustrated the device designed especially for the alleviation of painsf In this figurethe casing C has a curved top, a flat bottom and vertical sides connecting the bottom with in the small ofthe back.

the top. The core is shown by -the dotted lines, and is indicated by the numeral 3,

while the sides have secured thereto handles 2.

In Fig. 9 the device is illustrated constructed especially for the alleviation of pains in the legs or arms of a'patient. The

casing D includes afiat bottom and right angular ends and sides. The top iscurved inwardly from its connection with *the ends of the casing, and the *said ends "areprovided with handles 2. Also in Fig. 9 "I connected with the casing,

comprises a rectangular member which is of a size to receive any of the structures above set forth and includes a false bottom 6, a bottom 6 spaced a suitable distance from the false bottom 6, while between the bottom plates 0 and e is arranged a plurality of sheets of nonheat conducting material, indicated by the character f. The sides and ends which connect the bottom plates 0 and e are indicated by the character e, and project a suitable distance above the false bottom a. The tray '13 is designed to receive a Warmer to prevent the same burning the mattress or bed clothing of the bed-in which the patient is arranged. The structure as illustrated in Fig. 9 embodies the principle of the structures heretofore described, but, if desired, two cores or radiating members 3 may beemployed, the same members being indicated by the dotted lines in the saidfigure.

From the above description, taken in connection with the accompanying drawings, the simplicity of the device, as well as the advantages thereof will, it is thought, be perfectly apparent to those skilled in the art to which such inventions appertain withoutfurther detailed description. It may be stated, however, that the ends of the casings illustrated in Figs. 1 to 5 may be closed, or the said ends may be slightly bent inwardly,as shown in Fig. 2 of the drawings, and indicated by the character a", and further'that the device is not adapted to be received within any outer casing, aclot-h, either'damp or dry, any of the structures having, from actual tests, proved sufiicientto prevent the warmer IEIO'HilbHPHlDg or blistering the part to which it is applied.

applied to the casing of Having thus described the invention, what 1 claim is:

1. Ina device for the purpose set forth, a casing, a plastic heat distributer fillingthe casing, and a radiating core embedded within and entirely surrounded by the plastic. material.

2. In a device for the purpose set. forth, a sheet metal casing, a filler of plastic heatdistributing material within and filling the p '3. Inadevice' of the class set forth, a casing of thin material, a plasticbody of heat distributing material filling and adhesively and a core of :porous material embedded within the plastic material and co-extensive therewith.

4. In a warming device, body of heat distributing within the casingyand aiporous core=em'beda casing, a plastic casing, and a heat radiating core centrally embedded within the plastic material and coextensive with the casing.

material tamped ded Within the heat distributer and extendand entirely surrounded by the plastic maing centrally and longitudinally thereof. terial, and the casing, heat distributer and 5. In a Warming device of the class set core being inseparably connected.

forth a plastic body of heat distributing mm In testimony whereof I affix my signature 5 teral, a core embedded Within the heat disci' in presence of two Witnesses.

tri uter, and a casing co-extensive with an entirely inclosing the plastic distributer. v JOHN ROBERTS 6. In a device for the purpose set forth, a Witnesses:

casing, a plastic heat distributer filling the GEORGE H; CAMPBELL,

10 casing, a radiating core embedded Within WM. J KOERTH.

/Cbpis 5f this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. I 

